Lock-bolt.



L. & D. MOEILER.

Loox BOLT.

APPLIUAfIIN TILED JULY 17, 190B.

939,921 Patented No,v.9,19o9.

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uiTnn sTATns PATENT onirica LAWRENCE MOELLER AND DANIEL MOELLER, OFANDREW, IOWA; SAID LAWRENCE IVIOELLER ASSIGNOR, TO SAID DANIEL MOELLER.

LOCK-BOLT.

To all whom it may concern:

Bc it known that we, Lawnnnon MonLLnr. and DANIEL MonLLnn, citizens ofthe United States, residing at Andrew, in the county of Jackson, Stateof Iowa, have invented certain new and useful Improvements in Lock-Bolts; and we do hereby declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledinthe art to which it appertains to make and use the saine.

rllhis invention relates to lock bolts, coupling pins and similardevices, and has for one of its objects to simplify and improve theconstruction and increase the efficiency and utility of devices of thischaracter.

Another object of the invention is to provide a device of this characterwhich may be adapted to the various purposes for which loclr bolts areemployed, and'whereby two objects may be quickly coupled and uncoupledwithout detaching or destroying any of the parts of the device.

lith these and other objects in view the invention consists in a tubularsleeve having a lateral head at one end and adapted to be insertedthrough the parts of the structure to be united, a headed bolt extendingthrough the tubular sleeve and provided with a longitudinal bore, aspring actuated arm swinging in the bolt, and an operating mechanismextending through the bore of the bolt and actuated from the enlargedend of the same.

rThe invention further consists in certain novel features ofconstruction as hereafter shown and described and then specificallypointed out in the claims, and in the drawings illustrating thepreferred embodiment of the invention, Figure 1 is a side elevation ofthe improved device. Fig. 2 is a plan View of the same. Fig. 3 is asectional view on the line SH3 of Fig. 1. Fig. t is a transverse sectionenlarged on the line 4*4 of Fig. 3, looking toward the lower end of thebolt.

The improved device comprises a sleeve 10 having a lateral head 11 andadapted to be inserted through the structure which is to be connected bythe bolt, and for the purpose of illustration two members 12-13 areshown thus coupled, the head 11 of the sleeve bearing upon the member12.

Extending through the tubular member 10 is a bolt 14 having alongitudinal bore 15 Speccaton of Letters Patent.

Application led July 17, 1908.

Serial No. 444,081.

and a lateral head 16, the head of the bolt bearing upon the head ofthesleeve as shown.

Formed laterally through the bolt 1st near the end opposite to the head16 is a transverse slot 17, and pivoted at 18 within this slot is an arm19 having a lateral projection 2O at its free end, the lateralprojection adapted to extend beyond the bolt and bearing against themember 13 as sh wn in F ig. 8 when' the device is in operative orholding posit-ion. The arm 19 is provided with a spring which ispreferably formed by coiling a wire Q1 around the pivot 18 and extendingone end for engagement with the body of the bolt at 22 and with theother end engaging the arm 19 at 23. By this arrangement the springoperates to maintain the arm yieldably in its projected position, andthus lock the bolt within the sleeve, and prevent the' separation of theparts 12-13.

Extending through the bore of the bolt 141 is a. pull rod 24 having aneye 2:3 at one end through which a pin 26 extends, the pin alsoextending through a small trip lever 27 fitting in a transverse camrecess or seat 28 in the head 16 of the bolt. The end of the rod 24:opposite to the eye 25 is connected to the arm 19 at 29. The rod 241,cam lever 27 and the arm 19 will be so arranged that when the cam leveris seated in the recess 28 the rod will be relaxed and permit the spring21 to hold the arm in its distended position or with the lateral portion2O which projects from the bolt against the member 13, and so long asthe parts remain in these rela- -tive positions, the bolt will be firmlylocked in position and hold the parts 12-13 united. The cam device isthus supported between the walls of the recess and protected andconcealed thereby when in withdrawn position. If it is desired torelease the bolt it is only necessary to elevate the cam Q7 to cause itsshorter end 30 to bear against the bottom of the recess 28 and move therod 2% longitudinally'of the bolt and thus move the arm 19 against thespring 21 and withdraw the portion 2O within the bolt, this action ofthe cam device retaining the member 27 in its withdrawn position. Thisaction of the cam device releases the bolt and enables it to bewithdrawn, this action likewise releasing t-he sleeve 10 and enabling itto also be withdrawn. The sleeve 10 and the associated parts may be ofany desired size or Fateirted Nov. 9, 1999.

strength, and of any required length to adapt the device to the varying'purposes for which it may be employed.

The improved device may be employed as an ordinary linch pin forconnecting the reach member in Wagons, as a coupling pin for clevises ofvarious forms, and for any other purpose to which devices of this kindare applicable.

The improved device may be inexpensively manufactured and adapted to thevarious purposes for Which lock bolts are employed and it is not desiredtherefore to limit the invent-ion to any specific purpose for which itmaybe employed, and it is also understood that modifications in theconstruction of the parts may be made Within the scope of the appendedclaims Without departing from the principle of the invention orsacriicing any of its advantages.

What is claimed, is

l. A device of the class described comprising a bolt having alongitudinal bore and With a head at one end and a transverse cavity atthe other end, an arm adapted to swing in said cavity and to extendbeyond the bolt and to be Withdrawn into the cavity, apull rod extendingthrough the bore of the bolt and connected at one end to the arm, a camdevice pivotally connected to the rod at the other end and bearing byone side upon the head of the bolt When the arm is in extended position,and bearing endivise upon the bolt head when the arm is in Withdrawnposition.

2. A device of the class described comprising a bolt having alongitudinal bore and with a transverse cavity at one end and a head atthe other end, said head having a transverse recess communicating Withthe bore of the bolt, an arm adapted to swing in said cavity and toextend beyond the bolt and to be Withdrawn into the cavity, a pull rodextending through the bore of the bolt and connected at one end to thearm, a cam device pivotally connected to the rod at the other end andbearing by one side upon the head of the bolt and concealed Within therecess when the arm is in extended position, and bearing endwise againstthe bolt head and Within the recess When the arm is in uffithdrawnposition.

In testimony whereof, We aiix our signatures in presence of twoWitnesses.

LAVRENCE MOELLER. DANIEL MOELLER.

Titnesses CHRIS. BACH, @HARLEY KNARR.

